CN103554902B - Nylon composite materials and preparation method thereof - Google Patents
Nylon composite materials and preparation method thereof Download PDFInfo
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- CN103554902B CN103554902B CN201310518478.9A CN201310518478A CN103554902B CN 103554902 B CN103554902 B CN 103554902B CN 201310518478 A CN201310518478 A CN 201310518478A CN 103554902 B CN103554902 B CN 103554902B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/05—Polymer mixtures characterised by other features containing polymer components which can react with one another
Abstract
The invention discloses a kind of nylon composite materials and preparation method thereof.This nylon composite materials, comprises the recipe ingredient of following mass ratio: nylon 15 ~ 93.8%, branching functional high molecule material 0.5 ~ 15%, grafting agent 0.5 ~ 5%, glass fibre 5 ~ 50%, toughner 0 ~ 10%, auxiliary agent 0.2 ~ 5%.Nylon composite materials of the present invention take nylon as major ingredient, by acting synergistically with branching functional polymer, grafting agent, glass fibre, toughner and auxiliary agent, thus impart this nylon composite materials there is the rigidity of strengthening and hardness, thermotolerance, dimensional stability, cold resistance, ageing-resistant and be suitable for the nylon composite materials of blow molding simultaneously, the water-intake rate effectively overcoming existing nylon material is high, poor dimensional stability, the deficiency that heat-resisting and lower temperature resistance is poor.Make this nylon composite materials can meet various automobile, instrument, the structure unit such as electric to more high performance requirement thus.
Description
Technical field
The invention belongs to complex organic molecules field of material technology, particularly a kind of nylon composite materials and preparation method thereof.
Background technology
Nylon is as most important kind maximum in engineering plastics, there is very strong vitality, mainly be that it has excellent mechanical property, high strength, high rigidity, wear-resisting, heat-resisting, also there is fabulous chemically-resistant, oil resistant, alkaline resistance properties, and modifiedly can realize high performance, be therefore used widely in automobile, electric installation, Machinery Ministry structure, transportation equipment, weaving, papermaking equipment etc.But there is also some shortcomings, as water-intake rate is high, poor dimensional stability, thermotolerance, lower temperature resistance also have much room for improvement.
The method that current nylon products adopts usually is injection moulding, extrudes, compacting, cast molding.But have many product complex structures, thin-walled and shape hollow, injection moulding is extruded and is difficult to shaping, must adopt extrusion and blow molding method.But the molecular weight of conventional nylon raw material is between 1.5 ~ 30,000, and melt strength is low, sag resistant ability; Melt viscosity can reduce suddenly to temperature sensitive and near fusing point; And there is very strong hydrogen bond action, easy crystallization between amide group on its main chain; These all make common nylon material be not suitable for blow molding.
There are some patents to relate to blowing level nylon abroad, are less than in relative viscosity in the nylon of 100 and add Tackified polymeric as vinylbenzene and (methyl) acrylonitrile copolymer, the polystyrene of modified rubber; Or adopt the acid anhydrides adding and be rich in ethene as toughness reinforcing tackifier, and add the method for tetrafluoroethylene as surface treatment agent of fibre-grade; Also have other similar patent reports to prepare the nylon of high fondant-strength, but all do not relate to blowing level fiberglass booster stage nylon.
At present, domesticly also occurred employing glass fibre reinforced nylon material, its technical scheme is greater than in the nylon of 220ml/g in viscosity to add the short fiber of arithmetic average length between 70 ~ 180 μm; If viscosity is less than 190ml/g, finally also need the solid phase aftercondensated adding nylon.This technical scheme production technique more complicated.In addition, strong nylon material prepared by the method is difficult to, except the defect of blow molding, also to have anisotropy except existing, and this anisotropy makes article surface coarse, the more important thing is the intensity that significantly can reduce nylon material; In addition the density variation of glass fibre and nylon resin is comparatively large, and in blow-molding process, both flow rates also have difference, and easily produce melt fracture, bring difficulty to machine-shaping.
Summary of the invention
The object of the invention is to the above-mentioned deficiency overcoming prior art, a kind of nylon composite materials being suitable for blow molding is provided.
It is simple that another object of the present invention is to provide a kind of technique, and condition is easily controlled, the preparation method of nylon composite materials with low cost.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of nylon composite materials, comprises the recipe ingredient of following mass ratio:
And a kind of preparation method of nylon composite materials, comprises the following steps:
Each component is taken respectively according to above-mentioned nylon composite materials;
The nylon taken above-mentioned, branching functional high molecule material, grafting agent, toughner, auxiliary agent carry out mixing treatment, obtain blended material;
By above-mentioned blended material from the feeding of major ingredient mouth, glass fibre melt extrudes from side material mouth feeding, obtains described nylon composite materials; Wherein, the temperature melt extruded is 180 DEG C ~ 290 DEG C times extruding stop is 1 ~ 5min.
Nylon composite materials of the present invention take nylon as major ingredient, by with branching functional high molecule material, grafting agent, glass fibre, toughner and auxiliary agent act synergistically, modification is carried out to nylon, low with the melt strength overcoming nylon, sag resistant ability, melt viscosity can reduce suddenly to temperature sensitive and near fusing point, the technical problem of easy crystallization, and overcome existing glass fibre reinforced nylon material and be difficult to blow molding and anisotropic technical problem, thus impart rigidity and the hardness that this nylon composite materials has strengthening simultaneously, thermotolerance, dimensional stability, cold resistance, ageing-resistant, and be suitable for the characteristic of blow molding, and make this nylon composite materials be suitable for blow molding into type, various automobile can be met, instrument, the electric structure unit that waits is to more high performance requirement.
The preparation method of nylon composite materials of the present invention takes each component by formula, first the nylon taken, branching functional polymer, grafting agent, toughner, auxiliary agent is carried out mixing treatment, obtains blended material; Again this blended material is carried out melting, add the glass fibre taken simultaneously, extrude rear cooling, pelletizing, screening, obtains product; Temperature is 180 DEG C ~ 290 DEG C.In mixed melting process, nylon and branching functional polymer, grafting agent, glass fibre, toughner and auxiliary agent act synergistically, thus impart this nylon composite materials and have the rigidity of strengthening and hardness, thermotolerance, dimensional stability, cold resistance, ageing-resistant and can the performance of blow molding.This preparation method's technique is simple, and condition is easily controlled, with low cost, improves the performance of composite high-molecular material, is suitable for suitability for industrialized production.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the process flow diagram of embodiment of the present invention nylon composite materials preparation method.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention provides a kind of rigidity simultaneously with strengthening and hardness, thermotolerance, dimensional stability, cold resistance, ageing-resistant and be suitable for the nylon composite materials of blow molding.This nylon composite materials is for the preparation of various automobile, instrument, the structure unit such as electric, and it comprises the recipe ingredient of following mass ratio:
Preferably, above-mentioned nylon is [-H
2n (CH
2)
anH
2oC (CH
2)
bcO-]
c, [-H
2n (CH
2)
moCNH
2(CH
2)
ncO-]
qone or both interworkings in represented nylon macromolecular material.Particularly, the molecular weight of this nylon macromolecular material is 1 ~ 40,000, and wherein a, b, m, n are the integer of 0 ~ 13, and preferred a is 4 ~ 12, b is 2 ~ 12, m is 4 ~ 8, n is 4 ~ 8; C, q are the polymerization degree, and this polymerization degree is the integer of 120 ~ 350 or 120 ~ 350, and preferred c is 125 ~ 150, q is 130 ~ 160.Particularly, this nylon polymer is preferably PA6, PA66, PA1010, nylon PA1212.This preferred PA6, PA66, PA1010, nylon PA1212 is certain as the major ingredient of above-described embodiment nylon composite materials, PA can also adopt other PA material of this area, but adopt other PA materials compared with this PA6 or PA66, the intensity of the nylon composite materials obtained is relatively more weak.
Preferably, above-mentioned branching functional high molecule material is homopolymerization or copolymerized macromolecule, and the monomer of described homopolymerization or copolymerized macromolecule contains at least one in hydroxyl, carboxyl, amino functional side base.Particularly, this branching functional high molecule material is preferably polymethyl acrylic acid (PMA) or polyvinyl alcohol (PVA).This preferred branching functional polymer reacts with above-mentioned nylon PA melt extruding in technique, carries out modification to nylon PA, to make this nylon composite materials branching further, to improve cementability, strengthens rigidity and hardness better, as performances such as resistance to impact shocks; The shortcoming of, sag resistant ability low with the melt strength overcoming existing nylon material.
Preferably, above-mentioned grafting agent one or both interworkings that to be described grafting agent be in epoxy compounds, anhydride compound; The functionality of above-mentioned epoxy compounds, anhydride compound is greater than 2, and preferred functionality is 3 ~ 10.Particularly, this grafting agent is preferably epoxy soybean oil, epoxy resin E-51, pyromellitic acid anhydride PMDA.This preferred grafting agent melt extrude in technique catch up with state branching functional polymer together with nylon generation graft reaction, make macromolecular chain produces radical, thus mutually exchanged plasticising and stablize or the functional group of toughening effect, to make this nylon composite materials stable performance and dimensional stabilizing further, overcome existing nylon material melt viscosity can reduce suddenly to temperature sensitive and near fusing point, and between amide group on its main chain, there is the technical problem of very strong hydrogen bond action, easily crystallization.
Preferably, above-mentioned glass fibre is one or more interworkings in alkali free glass fibre, medium-alkali glass fibre, high strength glass fiber.Particularly, above-mentioned non-alkali glass has good electric insulating quality and mechanical property; Above-mentioned medium-alkali glass fibre has good chemical resistant properties, and particularly acid resistance is strong; The tensile modulus of above-mentioned high strength glass fiber is higher than 80GPa, its Young's modulus is that 86000Mpa(is higher than the intensity of alkali-free glass fiber), have the characteristic of high strength, high-modulus, its ultimate fibre tensile strength is that 2800MPa(is higher than alkali-free glass fiber tensile strength by about 25%).This preferred glass fibre reacts with nylon melt extruding in technique, promotes the rigidity of Reinforced Nylon material and hardness, thermotolerance and heat-drawn wire, water absorbability, dimensional stability, and reduce shrinking percentage as strongthener; Overcome existing glass fibre reinforced nylon material and be difficult to blow molding and anisotropic technical problem.
Preferably, above-mentioned toughner is one or more interworkings in maleic anhydride stem grafting polyolefin elastomerics POE, maleic anhydride graft terpolymer EP rubber EPDM, glycidyl methacrylate graft polyolefin elastomer, glycidyl methacrylate graft terpolymer EP rubber EPDM.This preferred toughner contains unsaturated link(age) and amide group, can with nylon generation chemical reaction, comparatively ideal toughening effect can be obtained, make heat-drawn wire constant, reduce the fragility of nylon composite materials, and shock resistance obviously be improved.
Preferably, above-mentioned auxiliary agent is one or both interworkings of oxidation inhibitor, lubricant.Particularly, when auxiliary agent be oxidation inhibitor, lubricant compound time, the mass ratio of this oxidation inhibitor and lubricant is 1:(0.5 ~ 3.0).Particularly, above-mentioned oxidation inhibitor is one or more interworkings in suffocated amine antioxidant, Hinered phenols antioxidant, phosphite ester kind antioxidant; Further, the preferred oxidation inhibitor 1098 of above-mentioned oxidation inhibitor, antioxidant 1010, phosphorous acid ester.Wherein, above-mentioned suffocated amine antioxidant, Hinered phenols antioxidant are as primary antioxidant, and by eliminating the free radical of nylon material, thermal oxidation resistance Be very effective, can not pollute nylon; Above-mentioned phosphite ester kind antioxidant, can hydroperoxide decomposition as auxiliary anti-oxidant.This oxidation inhibitor compound effectively improves the antioxidant property of the present embodiment nylon composite materials, keeps premium properties, increases the service life.Above-mentioned lubricant is one or more interworkings in Zinic stearas, calcium stearate, ethylene bis stearic acid amide, illiteracy dawn ester type waxes OP, silicone powder; Further, above-mentioned lubricant preferably covers dawn ester OP, Zinic stearas.
Correspondingly, the embodiment of the present invention additionally provides the preparation method of above-mentioned nylon composite materials, and as shown in Figure 1, the method comprises the steps: in its technical process
S01. recipe ingredient is taken: take each component respectively according to the formula of above-mentioned nylon composite materials;
S02. mixture is prepared: the nylon taken, branching functional high molecule material, grafting agent, toughner, auxiliary agent are carried out mixing treatment, obtains blended material.
S03. melt extrude: by blended material obtained in step S02 from the feeding of major ingredient mouth, glass fibre carries out melting from side material mouth feeding and obtains described nylon composite materials; Wherein, the temperature melt extruded is 180 DEG C ~ 290 DEG C, and the time extruding stop is 1 ~ 5min.
Particularly, in above-mentioned steps S01, the component preferred content in the formula of nylon composite materials and formula and kind as described above, in order to save length, do not repeat them here.
Particularly, in above-mentioned steps S02, the compound method of blended material is preferably as follows: first get nylon, branching functional polymer, grafting agent, toughner adds high speed mixer, mixing 5 ~ 10min after instillation dispersed oil; In high speed mixer, add auxiliary agent mixing 5 ~ 10 minutes again, obtain described blended material.
Particularly, in above-mentioned steps S03, melt extrude employing twin screw extruder, twin screw length-to-diameter ratio is 36 ~ 56, and engine speed is 100 ~ 600rpm.
The preparation method of above-described embodiment nylon composite materials only need by formula by each component by step mix be incorporated in suitable temperature and time under extruding pelletization can obtain product.In extrusion, nylon and branching functional polymer, grafting agent, glass fibre, toughner and auxiliary agent act synergistically, thus impart this nylon composite materials and have the rigidity of strengthening and hardness, thermotolerance, dimensional stability, cold resistance, ageing-resistant and can the performance of blow molding.Have preparation method's technique simple, condition is easily controlled, with low cost, improves the performance of composite high-molecular material, is suitable for suitability for industrialized production.
Now for the formula of concrete nylon composite materials and preparation method, the present invention is further elaborated.
Embodiment 1
The mass ratio of each component of the present embodiment nylon composite materials is as follows:
The preparation method of this nylon composite materials is as follows:
S11. recipe ingredient is taken: take each component respectively according to the formula of above-mentioned nylon composite materials;
S12. prepare mixture: the nylon PA6 taken by step S11, polymethyl acrylic acid PMA, epoxy soybean oil, maleic anhydride graft terpolymer EP rubber add high speed mixer, after instillation dispersed oil, mix 5 ~ 10 minutes, obtain mixture one; Then and dawn ester OP wax will be covered add high speed mixer by oxidation inhibitor 1098, with mixture one high-speed mixer and mixing 5 ~ 10 minutes, obtain blended material two;
S13. melt extrude: blended material two obtained in step S12 is added twin screw extruder, and after mixing, melt extrude, temperature is 270 DEG C, and twin screw length-to-diameter ratio is 48, and engine speed is 300rpm; Add alkali free glass fibre at side spout simultaneously; Extrude rear cooling, pelletizing, screening, packaging, obtains described nylon composite materials.
Embodiment 2
The mass ratio of each component of the present embodiment nylon composite materials is as follows:
The preparation method of this nylon composite materials is as follows:
S21. recipe ingredient is taken: take each component respectively according to the formula of above-mentioned nylon composite materials;
S22. prepare mixture: the nylon PA66 taken by step S21, PVAC polyvinylalcohol, epoxy resin E-51, maleic anhydride polyolefin elastomer add high speed mixer, after instillation dispersed oil, mix 5 ~ 10 minutes, obtain mixture one; Then Hinered phenols is added high speed mixer by antioxidant 1010 and Zinic stearas, with mixture one high-speed mixer and mixing 5 ~ 10 minutes, obtain blended material two;
S23. melt extrude: blended material two obtained in step S22 is added twin screw extruder, and after mixing, melt extrude, temperature is 290 DEG C, and twin screw length-to-diameter ratio is 52, and engine speed is 400rpm; Add medium-alkali glass fibre at side spout simultaneously; Extrude rear cooling, pelletizing, screening, packaging, obtains described nylon composite materials.
Embodiment 3
The mass ratio of each component of the present embodiment nylon composite materials is as follows:
The preparation method of this nylon composite materials is as follows:
S31. recipe ingredient is taken: take each component respectively according to the formula of above-mentioned nylon composite materials;
S32. mixture is prepared: the nylon PA1010 taken by step S31, polyacrylamide PMA, all benzene four acid anhydride PMDA, methyl propenoic acid glycidyl ether polyolefin elastomer add high speed mixer, after instillation dispersed oil, mix 5 ~ 10 minutes, obtain mixture one; Then phosphite ester kind antioxidant 168 and ethylene bis stearic acid amide are added high speed mixer, with mixture one high-speed mixer and mixing 5 ~ 10 minutes, obtain blended material two;
S33. melt extrude: blended material two obtained in step S32 is added twin screw extruder, and after mixing, melt extrude, temperature is 220 DEG C, and twin screw length-to-diameter ratio is 52, and engine speed is 400rpm; Add high-strength glass fibre at side spout simultaneously; Extrude rear cooling, pelletizing, screening, obtains described nylon composite materials.
Embodiment 4
The mass ratio of each component of the present embodiment nylon composite materials is as follows:
The preparation method of this nylon composite materials is as follows:
S41. recipe ingredient is taken: take each component respectively according to the formula of above-mentioned nylon composite materials;
S42. prepare mixture: the nylon PA1212 taken by step S41, PVAC polyvinylalcohol, all benzene four acid anhydride PMDA, maleic anhydride tercopolymer ethylene-propylene rubber(EPR) add high speed mixer, after instillation dispersed oil, mix 5 ~ 10 minutes, obtain mixture one; Then antioxidant 1010 and silicone powder are added high speed mixer, with mixture one high-speed mixer and mixing 5 ~ 10 minutes, obtain blended material two;
S43. melt extrude: blended material two obtained in step S42 is added twin screw extruder, and after mixing, melt extrude, temperature is 200 DEG C, and twin screw length-to-diameter ratio is 52, and engine speed is 400rpm; Add medium-alkali glass fibre at side spout simultaneously; Extrude rear cooling, pelletizing, screening, obtains described nylon composite materials.
Embodiment 5
The mass ratio of each component of the present embodiment nylon composite materials is as follows:
The preparation method of this nylon composite materials is as follows:
S51. recipe ingredient is taken: take each component respectively according to the formula of above-mentioned nylon composite materials;
S52. prepare mixture: the nylon PA6 taken by step S51, PVAC polyvinylalcohol, all benzene four acid anhydride PMDA, maleic anhydride tercopolymer ethylene-propylene rubber(EPR) add high speed mixer, after instillation dispersed oil, mix 5 ~ 10 minutes, obtain mixture one; Then oxidation inhibitor 1098 and calcium stearate are added high speed mixer, with mixture one high-speed mixer and mixing 5 ~ 10 minutes, obtain blended material two;
S53. melt extrude: blended material two obtained in step S52 is added twin screw extruder, and after mixing, melt extrude, temperature is 240 DEG C, and twin screw length-to-diameter ratio is 52, and engine speed is 400rpm; Add alkali free glass fibre at side spout simultaneously; Extrude rear cooling, pelletizing, screening, obtains described nylon composite materials.(by the forced air drying after 12 hours at 90 DEG C of gained nylon particle in 5 embodiments, injection moulding standard batten, test performance is as following table 1:
Table 1
Analytical results: blowing temperature range prepared by the formula of above embodiment 1 ~ 5 is 220 ~ 280 DEG C, obtained products appearance is smooth, and toughness is good; Its outward appearance is by the content influence of lubricant, if do not added, outward appearance is coarse, has floating fine phenomenon; Its toughness affects by toughner, if do not add toughner, goods are easily broken; Its processing characteristics is by the content influence of branching functional polymer and grafting agent, and suitable branching functional polymer and grafting agent addition, avoid occurring the breaking of bottle embryo, sagging improving the blow processability energy of glass fibre reinforced nylon material well.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a nylon composite materials, is made up of the recipe ingredient of following mass ratio:
Described branching functional high molecule material is polymethyl acrylic acid; Described grafting agent is one or both interworkings in epoxy compounds, anhydride compound; Described auxiliary agent is one or both interworkings of oxidation inhibitor, lubricant.
2. nylon composite materials according to claim 1, is characterized in that: described nylon is structural formula is [-H
2n (CH
2)
anH
2oC (CH
2)
bcO-]
c, [-H
2n (CH
2)
moCNH
2(CH
2)
ncO-]
qone or both interworkings of represented nylon macromolecular material, the molecular weight of described nylon is 1 ~ 40,000; Wherein a, b, m, n are the integer of 0 ~ 13, and c, q are 120 ~ 350.
3. nylon composite materials according to claim 1, is characterized in that: described glass fibre is one or more interworkings in alkali free glass fibre, medium-alkali glass fibre, high strength glass fiber.
4. nylon composite materials according to claim 1, is characterized in that: described toughner is one or more interworkings in maleic anhydride stem grafting polyolefin elastomerics, maleic anhydride graft terpolymer EP rubber, glycidyl methacrylate graft polyolefin elastomer, glycidyl methacrylate graft terpolymer EP rubber.
5. nylon composite materials according to claim 1, is characterized in that: when described oxidation inhibitor and lubricant interworking, oxidation inhibitor: the mass ratio of lubricant is 1:(0.5 ~ 3.0).
6. nylon composite materials according to claim 5, is characterized in that: described oxidation inhibitor is one or more interworkings in suffocated amine antioxidant, Hinered phenols antioxidant, phosphite ester kind antioxidant; Described lubricant is one or more interworkings in Zinic stearas, calcium stearate, ethylene bis stearic acid amide, illiteracy dawn ester type waxes, silicone powder.
7. a preparation method for nylon composite materials, comprises the following steps:
Each component is taken respectively according to the nylon composite materials described in any one of claim 1 ~ 6;
The nylon taken described, branching functional high molecule material, grafting agent, toughner, auxiliary agent carry out mixing treatment, obtain blended material;
By described blended material from the feeding of major ingredient mouth, glass fibre melt extrudes from side material mouth feeding, obtains described nylon composite materials; Wherein, the temperature melt extruded is 180 DEG C ~ 290 DEG C, and the time extruding stop is 1 ~ 5min.
8. the preparation method of nylon composite materials according to claim 7, it is characterized in that: the collocation method of described blended material is: first get nylon, branching functional polymer, grafting agent, toughner, mixing 5 ~ 10min after instillation dispersed oil, add auxiliary agent mixing 5 ~ 10 minutes again, obtain described blended material.
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| CN105694366A (en) * | 2016-03-14 | 2016-06-22 | 苏州莱特复合材料有限公司 | Preparation method of impact-resistant composite material for car bumpers |
| CN109971165B (en) * | 2019-03-22 | 2022-12-20 | 华南理工大学 | Grafted nylon material and preparation method thereof |
| CN114286844A (en) * | 2019-09-23 | 2022-04-05 | 巴斯夫欧洲公司 | Melt flowable polyamide composition for forming articles |
| CN111138853B (en) * | 2019-12-27 | 2022-06-24 | 宁波万佳成电子实业有限公司 | Modified PA material for plastic lighter shell and preparation method thereof |
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| CN101875782A (en) * | 2010-03-31 | 2010-11-03 | 深圳市科聚新材料有限公司 | Bromine/stibium flame retardancy reinforced polyamide composite material and preparation method thereof |
| CN102112549A (en) * | 2008-07-30 | 2011-06-29 | 纳幕尔杜邦公司 | Heat resistant thermoplastic articles including polyhydroxy polymers |
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|---|---|---|---|---|
| CN102112549A (en) * | 2008-07-30 | 2011-06-29 | 纳幕尔杜邦公司 | Heat resistant thermoplastic articles including polyhydroxy polymers |
| CN101875782A (en) * | 2010-03-31 | 2010-11-03 | 深圳市科聚新材料有限公司 | Bromine/stibium flame retardancy reinforced polyamide composite material and preparation method thereof |
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